package com.softa.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class GetMacAddressUtil
{
	/**
	 * 获取当前操作系统名称. 
	 * return 操作系统名称 例如:windows,Linux,Unix等.
	 */
	public static String getOSName()
	{
		return System.getProperty("os.name").toLowerCase();
	}

	/**
	 * 获取Unix网卡的mac地址.
	 * @return mac地址
	 */
	public static String getUnixMACAddress()
	{
		String mac = null;
		BufferedReader bufferedReader = null;
		Process process = null;
		try
		{
			/**
			 * Unix下的命令，一般取eth0作为本地主网卡 显示信息中包含有mac地址信息
			 */
			process = Runtime.getRuntime().exec("ifconfig eth0");
			bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
			String line = null;
			int index = -1;
			while ((line = bufferedReader.readLine()) != null)
			{
				/**
				 * 寻找标示字符串[hwaddr]
				 */
				index = line.toLowerCase().indexOf("hwaddr");
				/**
				 * 找到了
				 */
				if (index != -1)
				{
					/**
					 * 取出mac地址并去除2边空格
					 */
					mac = line.substring(index + "hwaddr".length() + 1).trim();
					break;
				}
			}
		} catch (IOException e)
		{
			e.printStackTrace();
		} finally
		{
			try
			{
				if (bufferedReader != null)
				{
					bufferedReader.close();
				}
			} catch (IOException e1)
			{
				e1.printStackTrace();
			}
			bufferedReader = null;
			process = null;
		}

		return mac;
	}

	/**
	 * 获取Linux网卡的mac地址.
	 * 
	 * @return mac地址
	 */
	public static String getLinuxMACAddress()
	{
		String mac = null;
		BufferedReader bufferedReader = null;
		Process process = null;
		try
		{
			/**
			 * linux下的命令，一般取eth0作为本地主网卡 显示信息中包含有mac地址信息
			 */
			process = Runtime.getRuntime().exec("ifconfig eth0");
			bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
			String line = null;
			int index = -1;
			while ((line = bufferedReader.readLine()) != null)
			{
				index = line.toLowerCase().indexOf("硬件地址");
				/**
				 * 找到了
				 */
				if (index != -1)
				{
					/**
					 * 取出mac地址并去除2边空格
					 */
					mac = line.substring(index + 4).trim();
					break;
				}
			}
		} catch (IOException e)
		{
			e.printStackTrace();
		} finally
		{
			try
			{
				if (bufferedReader != null)
				{
					bufferedReader.close();
				}
			} catch (IOException e1)
			{
				e1.printStackTrace();
			}
			bufferedReader = null;
			process = null;
		}

		return mac;
	}

	/**
	 * 获取widnows网卡的mac地址.
	 * 
	 * @return mac地址
	 */
	public static String getWindowsMACAddress()
	{
		String mac = null;
		BufferedReader bufferedReader = null;
		Process process = null;
		try
		{
			/**
			 * windows下的命令，显示信息中包含有mac地址信息
			 */
			process = Runtime.getRuntime().exec("ipconfig /all");
			bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
			String line = null;
			int index = -1;
			while ((line = bufferedReader.readLine()) != null)
			{
				/**
				 * 寻找标示字符串[physical address]
				 */
				index = line.toLowerCase().indexOf("physical address");
				if (index != -1)
				{
					index = line.indexOf(":");
					if (index != -1)
					{
						/**
						 * 取出mac地址并去除2边空格
						 */
						mac = line.substring(index + 1).trim();
					}
					break;
				}
			}
		} catch (IOException e)
		{
			e.printStackTrace();
		} finally
		{
			try
			{
				if (bufferedReader != null)
				{
					bufferedReader.close();
				}
			} catch (IOException e1)
			{
				e1.printStackTrace();
			}
			bufferedReader = null;
			process = null;
		}

		return mac;
	}

	
	//WindowsCmd ="cmd.exe /c echo %NUMBER_OF_PROCESSORS%";//windows的特殊
	//SolarisCmd = {"/bin/sh", "-c", "/usr/sbin/psrinfo | wc -l"};  
	//AIXCmd = {"/bin/sh", "-c", "/usr/sbin/lsdev -Cc processor | wc -l"};  
	//HPUXCmd = {"/bin/sh", "-c", "echo \"map\" | /usr/sbin/cstm | grep CPU | wc -l "}; 
	//LinuxCmd = {"/bin/sh", "-c", "cat /proc/cpuinfo | grep ^process | wc -l"}; 

	/**
	 * 测试用的main方法.
	 * 
	 * @param argc
	 *            运行参数.
	 */
	public static void main(String[] argc )
	{
		String os = getOSName();
		System.out.println(os);
		if (os.startsWith("windows"))
		{
			String mac = getWindowsMACAddress();
			System.out.println("本地是windows:" + mac);
		} else if (os.startsWith("linux"))
		{
			String mac = getLinuxMACAddress();
			System.out.println("本地是Linux系统,MAC地址是:" + mac);
		} else
		{
			String mac = getUnixMACAddress();
			System.out.println("本地是Unix系统 MAC地址是:" + mac);
		}
	}

}
